1955 hudson 308 engine differences with the 1954 hudson 308

I can purchase a 1955 308 engine for my 54 hornet which has a seized 308 eng I was told they were different in length Or something like that my car has the auto anyone on here no if it will bolt up cheers in advance

Comments

  • StillOutThere
    StillOutThere Expert Adviser
    Same length as '51-54 blocks.   If it has Twin-H, the intake manifold has a narrowed balance tube.  There is greater valve relief machined into the '55-56 block.

    If it is seized, you would be starting with a big negative that is very likely going to cost you extra money during the rebuilding process.
  • lostmind
    lostmind Expert Adviser
    I believe the crankshaft is a different length , the difference is in the area after the last main bearing.
    If I remember correctly , it's shorter. Hudson supplied a spacer at one time to use these in earlier cars.
    I installed a 56 308 in a 52 Hornet coupe , using the 56 trans also ( hydra). I had to make rear motor mounts , but all else worked
  • Glowplug
    Glowplug Expert Adviser
    Go to my web site select engines from left side and the page that displays will Tell you all about the differences as well as how to make the engines work. http://hudsonrestoration1948-54.com/index.html
  • Lostmind is onto it that's what I was told so I will need a spacer on end of crank to fit to my auto So the bell housing bolt pattern must be the same ?? The 55 engine has been rebuilt so I just want to sling it in to get it on the road as original 308 is seized and needs a full rebuild $$$$ .Was going to install a 350 chev but I would rather go with the original setup problem is I am in Australia and parts are non existent !
  • ESSX28-1
    ESSX28-1 Senior Contributor
    This 262 is a lot closer to Aus in NZ  & at $NZ1350 it may be able to be landed for a resonable cost. Its been for sale for a while now, so the seller may negotiate.
    This is not my engine & I don't know anything more than the auction states.

    http://www.trademe.co.nz/Browse/Listing.aspx?id=1145486740

    Let me know if I can help but i'ts 1200 miles from me.

    Dave
  • bob ward
    bob ward Senior Contributor
    edited August 2016
    There are many of the later 6s installed in step-downs, the adapter that you need for the end of your crankshaft is readily available, someone on here will point you in the right direction. You may need to do something with the input shaft bush in the end of the crank. The sump and oil pick up tube from the step-down engine will need to be swapped over to. 

    Someone in the Australian Hudson community will take your old 308 if you don't want to hang on to it, dead or alive they are getting scarcer. Do you belong to one of the Oz Hudson clubs? If not they will be a source of useful advice.

    I'm in Laidley Qld if that's anywhere near you.    bobwardDOTlaidleyATgmailDOTcom
  • rusty176
    rusty176 Member
    edited August 2016
    Thanks Dave that's a good option for sure and Bob thanks for the info still have to see if the guy will sell me the 308 in Australia keep you posted !! Also I am in Queensland on sunshine coast !
  • Spencer Yarrow
    Spencer Yarrow Expert Adviser
    I have two 262 engines I would be willing to let go at Rosewood Queensland leave a message
  • Yeah Spencer I would be interested are they running or need rebuild and your not to far away cheers
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